Hybrid intra-cell TDMA/inter-cell CDMA for wireless networks
US5481533A · kind A · utility
214Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | May 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2618
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a cellular network, a multiple-access methodology and concomitant circuitry in which TDMA is used inside each cell and CDMA signals, having pulse shapes with low cross-correlations, are assigned to adjacent cells. For example, these pulses could be Direct-Sequence Spread-Spectrum pulses. Such a hybrid system combines the high intra-cell capacity of TDMA with the inter-cell and multipath interference rejection capabilities of CDMA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.